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-rw-r--r--src/console/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/console/Kconfig b/src/console/Kconfig
index d81563794b..3130ee9534 100644
--- a/src/console/Kconfig
+++ b/src/console/Kconfig
@@ -43,6 +43,9 @@ if CONSOLE_SERIAL
config UART_FOR_CONSOLE
int "Index for UART port to use for console"
default 0
+ help
+ Select an I/O port to use for serial console:
+ 0 = 0x3f8, 1 = 0x2f8, 2 = 0x3e8, 3 = 0x2e8
# FIXME: Early programming in romstage is incorrect as we should
# program different LDN to actually change the physical port.
@@ -56,6 +59,15 @@ config TTYS0_BASE
help
Map the COM port number to the respective I/O port.
+comment "Serial port base address = 0x3f8"
+depends on UART_FOR_CONSOLE = 0
+comment "Serial port base address = 0x2f8"
+depends on UART_FOR_CONSOLE = 1
+comment "Serial port base address = 0x3e8"
+depends on UART_FOR_CONSOLE = 2
+comment "Serial port base address = 0x2e8"
+depends on UART_FOR_CONSOLE = 3
+
choice
prompt "Baud rate"
default CONSOLE_SERIAL_115200